.banner {
    width: 100%;
    height: 550px;
    position: relative;
    /* border: 1px solid red; */
    margin: 100px auto;
}

.banner .wrap {
    width: 100%;
}

.banner .wrap .item {
    width: 100%;
}

.item img {
    width: 100%;
    height: 550px;
    vertical-align: top;
    position: absolute;
}

.div1 {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translatey(-50%);
    cursor: pointer;
    width: 41px;
    height: 69px;
    font-size: 30px;
    line-height: 70px;
    text-align: center;
    color: #D6D8D4;
    background-color: rgba(0, 0, 0, 0.3);
}

.div2 {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translatey(-50%);
    cursor: pointer;
    width: 41px;
    height: 69px;
    font-size: 30px;
    line-height: 70px;
    text-align: center;
    color: #D6D8D4;
    background-color: rgba(0, 0, 0, 0.3);
}

.pagenation {
    position: absolute;
    /* border: 1px solid red; */
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    bottom: 40px;
}

.pagenation>div {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: white;
    margin-right: 10px;
    cursor: pointer;
}

.pagenation>div:last-child {
    margin-right: 0;
}